WO1992013587A1 - Artificial airway device - Google Patents

Artificial airway device Download PDF

Info

Publication number
WO1992013587A1
WO1992013587A1 PCT/GB1992/000242 GB9200242W WO9213587A1 WO 1992013587 A1 WO1992013587 A1 WO 1992013587A1 GB 9200242 W GB9200242 W GB 9200242W WO 9213587 A1 WO9213587 A1 WO 9213587A1
Authority
WO
WIPO (PCT)
Prior art keywords
airway
mask
airway tube
tube
artificial
Prior art date
Application number
PCT/GB1992/000242
Other languages
French (fr)
Inventor
Archibald Ian Jeremy Brain
Original Assignee
Archibald Ian Jeremy Brain
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10689822&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1992013587(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Archibald Ian Jeremy Brain filed Critical Archibald Ian Jeremy Brain
Priority to DE69230368T priority Critical patent/DE69230368T2/en
Priority to US07/869,491 priority patent/US5303697A/en
Priority to AU12383/92A priority patent/AU653786B2/en
Priority to BR9205612A priority patent/BR9205612A/en
Priority to EP92904391A priority patent/EP0571439B1/en
Publication of WO1992013587A1 publication Critical patent/WO1992013587A1/en
Priority to GR20000400424T priority patent/GR3032725T3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0402—Special features for tracheal tubes not otherwise provided for
    • A61M16/0409—Special features for tracheal tubes not otherwise provided for with mean for closing the oesophagus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0402—Special features for tracheal tubes not otherwise provided for
    • A61M16/0425—Metal tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
    • A61M16/049—Mouthpieces
    • A61M16/0493—Mouthpieces with means for protecting the tube from damage caused by the patient's teeth, e.g. bite block

Definitions

  • the present invention relates to an artificial airway device of the type capable of facilitating ventilation in unconscious patients, and more specifically to such a device designed for placing in the oropharynx of the patient in order to prevent airway obstruction and to permit ventilation.
  • British Patent Publications Nos. 2 111 394 A and 2 229 367 A describe artificial airway devices capable of facilitating lung ventilation in an unconscious patient, referred to hereinafter as "laryngeal masks".
  • the insertion of a laryngeal mask needs to be undertaken by persons practised in the use of the mask and is not so effective in emergency situations where untrained personnel may be called to a patient.
  • these devices suffer from the limitation that they do not offer the same degree of protection against aspiration of regurgitated gastric contents into the lungs as does an endotracheal tube.
  • the latter device has long been established as the most reliable means of preventing such aspiration in the unconscious patient and consists of a tube with an inflatable cuff, inflation of which forms a seal against the wall of the trachea.
  • the laryngeal mask by contrast forms a seal around the perimeter of the larynx by means of an inflatable elliptical cuff.
  • the seal so formed depends on pressure against muscular structures which may by their contraction or relaxation influence this pressure, thus making the seal variable.
  • the degree of protection against aspiration already afforded by the laryngeal mask would be enhanced by allowing intubation with an endotracheal tube, with the laryngeal mask in place.
  • an artificial airway device to facilitate lung ventilation in an unconscious patient, comprising a substantially rigid airway tube and a mask attached to an end of the airway tube, the mask having an annular peripheral formation of roughly elliptical shape capable of conforming to, or readily fitting within, the actual and potential space behind the larynx so as to form a seal around the circumference of the laryngeal inlet without the device penetrating into the interior of the larynx, the annular peripheral formation surrounding a hollow interior space or lumen of the mask into which the airway tube opens, in which said airway tube is curved to follow the airway of a patient, and said device further comprises a substantially rigid handle portion mounted to an end of the airway tube remote from the mask and extending in a direction away from the mouth of said airway tube.
  • the handle portion curves in a direction opposite to the direction of curvature of the airway tube, for example to form an S shape.
  • This shape allows a person to insert a laryngeal mask into a patient quickly and effectively.
  • the handle portion can be removably mounted to the airway tube so that it can be detached after being used to guide the laryngeal mask into place. This has the advantage that the mask can be left in place in a patient without impeding medical attention.
  • the mask may include a stiff back piece surrounded by the annular peripheral portion. This assists in allowing the larynx to be pulled forward by manipulating the handle portion to enable regurgitated stomach contents to be released and to increase the seal of the annular peripheral formation against the laryngeal inlet.
  • the diameter of the airway tube can be such as to allow an endotracheal tube to be inserted through the tube to intubate a patient while the handle portion is braced manually.
  • the inventor has found that in this way it is possible to use a laryngeal mask as a guiding tool to facilitate passage of a normal diameter endotracheal tube into the trachea. This is feasible because the aperture in the laryngeal mask when correctly in position faces directly into the laryngeal orifice. By passing a well lubricated endotracheal tube and cuff through the tube of the laryngeal mask, it is thus possible to perform blind intubation whilst still ventilating the unconscious patient through the laryngeal mask.
  • the end of the airway tube remote from the mask may comprise a connecting portion for connection of the airway tube to a ventilation apparatus. This can enable a patient to be ventilated with or without intubation.
  • the device may include a bite portion adjacent the end of the airway tube remote from the mask for protecting the teeth of the patient.
  • the airway tube and the handle portion may be of stainless steel.
  • FIGURE 1 shows a laryngeal mask airway according to an embodiment of the present invention
  • FIGURE 2 shows a plan view of the laryngeal mask portion of the embodiment shown in Figure 1;
  • FIGURE 3 shows a laryngeal mask according to an embodiment of the present invention in use in a patient
  • FIGURE 4 shows an alternative laryngeal mask airway according to the present invention.
  • Figure 1 shows a laryngeal mask 12 made of silicone and mounted to a stainless steel airway tube 10.
  • the airway tube 10 is bonded by means such as ribbing and/or adhesives to a breathing tube port 22 of the laryngeal mask 12.
  • the laryngeal mask is known per se from GB 2111394 and 2229367 the contents of which are incorporated herein by reference. Only those aspects of the mask required to explain the present invention are described herein.
  • the airway 10 is of sufficient diameter to accommodate an 8mm cuffed endotracheal tube.
  • the airway tube 10 is bent around a curve having a curvature angle of approximately 90° in such a way as to fit around the curvature at the back of the tongue.
  • the tube widens and incorporates a flange 11 made of a material which will withstand biting without being hard enough to damage the patient's teeth.
  • a handle 9 is securely mounted to the outer end 10a of the tube 10, the handle 9 being curved in the opposite direction to the tube 10.
  • the handle 9 can be fixed to the airway tube 10 or can be removably mounted through slots or the like.
  • Figure 2 shows details of the laryngeal mask 12 in plan view.
  • the mask 12 is of flexible rubber sheet material having an inflatable tubular ring 14 of the same silicone rubber material forming its periphery.
  • the peripheral ring 14 is roughly elliptical in plan although its distal end 15 may be slightly elongated to conform with the triangular shape of the base of the hypopharynx where it becomes continuous with the upper end of the oesophagus.
  • the peripheral ring 14 includes a port 24 for connection to a rubber tube 26 of narrow diameter, through which the peripheral ring 14 may be inflated.
  • the breathing tube port 22 opens into an aperture 19 in the mask, which is provided with cross-bars 21 extending across the aperture, which prevents the epiglottis from falling into the aperture and obstructing the airway.
  • the aperture 19 opens into a lumen 18 or hollow interior of the mask.
  • the lumen 18 is surrounded by a soft flexible upstanding collar 27, of flexible sheet rubber material, adhered at its base to the peripheral ring 14 so that its free end extends away from the lumen 18 of the mask.
  • the lumen 18 is enclosed at the back of the mask by a back-piece (not shown) .
  • the back-piece can be made of stiff material such as a high grade silicone.
  • the peripheral ring 14 is fully deflated and the device is inserted by means of the handle 9 through the patient's mouth 30 and through the throat 31 past the epiglottis 32 until the mask 12 comes to rest in the position shown in Figure 3 with the distal end 15 of the ring 14 in the base 33 of the throat.
  • the ring 14 is then inflated to increase the sealing pressure around the inlet 36 to the larynx 38.
  • Intubation is then formed by passing a standard 8mm cuffed endotracheal tube 40 through the airway tube 10 and the aperture 19 into the larynx 38.
  • the device is braced against the insertion of the endotracheal tube 40 by means of the handle 12. This enables insertion to be done blindly (i.e. without a laryngoscope). It thus makes the mask ideally suited to emergency conditions.
  • the breathing tube port 22 opens into the lumen 18 of the mask at the appropriate angle for guiding the endotracheal tube 40 into the larynx 48, thereby allowing blind intubation of the larynx 38.
  • the position of the mask 12 may be controlled by means of the handle 11 so that the correct angle of intubation is achieved.
  • the handle 9 also allows the mask 12 to be pulled forwards towards the larynx 38, thereby pulling the larynx 38 forwards to allow regurgitated stomach contents to be released while maintaining a tight seal around the inlet 36 of the larynx 38.
  • a standard connector 50 is provided at the outer end of the airway tube 10 for attachment of conventional anaesthetic hosing and ventilation apparatus.
  • embodiments of the present invention enable blind intubation through a modified laryngeal mask with a tube such that:-
  • the position of the laryngeal mask against the laryngeal orifice can be influenced by manipulation of a handle attached to the outer end of a rigid tube.
  • the device can be positioned in the patient's pharynx using one hand only for insertion. This has advantages in the emergency situation where a patient may be trapped, for example in a crushed vehicle, making access difficult.
  • the length of the airway tube can be comparatively short to facilitate the passing of a standard endotracheal tube, because of the addition of a handle for controlling the laryngeal mask airway.
  • the airway tube is wide enough to accommodate an endotracheal tube of required diameter.
  • handle 9 and airway tube 10 are of stainless steel in the above embodiments, any rigid sterilisable material may alternatively be used.

Abstract

An artificial airway device to facilitate lung ventilation in an unconscious patient comprises a rigid airway tube (10), which is curved to follow the airway of the patient, opening into the interior space or lumen of a mask portion (12) whose periphery (14) is adapted to seal around the inlet (36) to the larynx (38), and a rigid handle (9) mounted at the outer end of the airway tube (10) and curved away from the mouth of the airway tube (10).

Description

Title of the Invention ARTIFICIAL AIRWAY DEVICE Field of the Invention
The present invention relates to an artificial airway device of the type capable of facilitating ventilation in unconscious patients, and more specifically to such a device designed for placing in the oropharynx of the patient in order to prevent airway obstruction and to permit ventilation.
Background to the Invention
British Patent Publications Nos. 2 111 394 A and 2 229 367 A describe artificial airway devices capable of facilitating lung ventilation in an unconscious patient, referred to hereinafter as "laryngeal masks". The insertion of a laryngeal mask needs to be undertaken by persons practised in the use of the mask and is not so effective in emergency situations where untrained personnel may be called to a patient. Furthermore, these devices suffer from the limitation that they do not offer the same degree of protection against aspiration of regurgitated gastric contents into the lungs as does an endotracheal tube. The latter device has long been established as the most reliable means of preventing such aspiration in the unconscious patient and consists of a tube with an inflatable cuff, inflation of which forms a seal against the wall of the trachea. The laryngeal mask by contrast forms a seal around the perimeter of the larynx by means of an inflatable elliptical cuff. The seal so formed depends on pressure against muscular structures which may by their contraction or relaxation influence this pressure, thus making the seal variable. Hence, the degree of protection against aspiration already afforded by the laryngeal mask would be enhanced by allowing intubation with an endotracheal tube, with the laryngeal mask in place. Attempts have been made to intubate through the airway tube of a conventional laryngeal mask and this has been found to be effective. However, only a small diameter endotracheal tube can be passed through the mask. Moreover, as the airway tube is flexible, the operation is awkward and not entirely suited to emergency procedures.
Summary of the Invention
According to one aspect of the present invention, there is provided an artificial airway device to facilitate lung ventilation in an unconscious patient, comprising a substantially rigid airway tube and a mask attached to an end of the airway tube, the mask having an annular peripheral formation of roughly elliptical shape capable of conforming to, or readily fitting within, the actual and potential space behind the larynx so as to form a seal around the circumference of the laryngeal inlet without the device penetrating into the interior of the larynx, the annular peripheral formation surrounding a hollow interior space or lumen of the mask into which the airway tube opens, in which said airway tube is curved to follow the airway of a patient, and said device further comprises a substantially rigid handle portion mounted to an end of the airway tube remote from the mask and extending in a direction away from the mouth of said airway tube.
In the preferred embodiment, the handle portion curves in a direction opposite to the direction of curvature of the airway tube, for example to form an S shape. This shape allows a person to insert a laryngeal mask into a patient quickly and effectively. The handle portion can be removably mounted to the airway tube so that it can be detached after being used to guide the laryngeal mask into place. This has the advantage that the mask can be left in place in a patient without impeding medical attention.
The mask may include a stiff back piece surrounded by the annular peripheral portion. This assists in allowing the larynx to be pulled forward by manipulating the handle portion to enable regurgitated stomach contents to be released and to increase the seal of the annular peripheral formation against the laryngeal inlet.
The diameter of the airway tube can be such as to allow an endotracheal tube to be inserted through the tube to intubate a patient while the handle portion is braced manually. The inventor has found that in this way it is possible to use a laryngeal mask as a guiding tool to facilitate passage of a normal diameter endotracheal tube into the trachea. This is feasible because the aperture in the laryngeal mask when correctly in position faces directly into the laryngeal orifice. By passing a well lubricated endotracheal tube and cuff through the tube of the laryngeal mask, it is thus possible to perform blind intubation whilst still ventilating the unconscious patient through the laryngeal mask.
The end of the airway tube remote from the mask may comprise a connecting portion for connection of the airway tube to a ventilation apparatus. This can enable a patient to be ventilated with or without intubation.
The device may include a bite portion adjacent the end of the airway tube remote from the mask for protecting the teeth of the patient. The airway tube and the handle portion may be of stainless steel.
Brief Description of the Drawings
FIGURE 1 shows a laryngeal mask airway according to an embodiment of the present invention;
FIGURE 2 shows a plan view of the laryngeal mask portion of the embodiment shown in Figure 1;
FIGURE 3 shows a laryngeal mask according to an embodiment of the present invention in use in a patient;
FIGURE 4 shows an alternative laryngeal mask airway according to the present invention.
Description of the Preferred Embodiments
Specific embodiments of the present invention will now be described by way of example with reference to the accompanying drawings.
Figure 1 shows a laryngeal mask 12 made of silicone and mounted to a stainless steel airway tube 10. The airway tube 10 is bonded by means such as ribbing and/or adhesives to a breathing tube port 22 of the laryngeal mask 12. The laryngeal mask is known per se from GB 2111394 and 2229367 the contents of which are incorporated herein by reference. Only those aspects of the mask required to explain the present invention are described herein. The airway 10 is of sufficient diameter to accommodate an 8mm cuffed endotracheal tube. The airway tube 10 is bent around a curve having a curvature angle of approximately 90° in such a way as to fit around the curvature at the back of the tongue. At its outer end 10a the tube widens and incorporates a flange 11 made of a material which will withstand biting without being hard enough to damage the patient's teeth. A handle 9 is securely mounted to the outer end 10a of the tube 10, the handle 9 being curved in the opposite direction to the tube 10. The handle 9 can be fixed to the airway tube 10 or can be removably mounted through slots or the like.
Figure 2 shows details of the laryngeal mask 12 in plan view.
The mask 12 is of flexible rubber sheet material having an inflatable tubular ring 14 of the same silicone rubber material forming its periphery. The peripheral ring 14 is roughly elliptical in plan although its distal end 15 may be slightly elongated to conform with the triangular shape of the base of the hypopharynx where it becomes continuous with the upper end of the oesophagus. The peripheral ring 14 includes a port 24 for connection to a rubber tube 26 of narrow diameter, through which the peripheral ring 14 may be inflated.
The breathing tube port 22 opens into an aperture 19 in the mask, which is provided with cross-bars 21 extending across the aperture, which prevents the epiglottis from falling into the aperture and obstructing the airway. The aperture 19 opens into a lumen 18 or hollow interior of the mask. The lumen 18 is surrounded by a soft flexible upstanding collar 27, of flexible sheet rubber material, adhered at its base to the peripheral ring 14 so that its free end extends away from the lumen 18 of the mask.
The lumen 18 is enclosed at the back of the mask by a back-piece (not shown) . The back-piece can be made of stiff material such as a high grade silicone.
To insert the laryngeal mask airway, the peripheral ring 14 is fully deflated and the device is inserted by means of the handle 9 through the patient's mouth 30 and through the throat 31 past the epiglottis 32 until the mask 12 comes to rest in the position shown in Figure 3 with the distal end 15 of the ring 14 in the base 33 of the throat. The ring 14 is then inflated to increase the sealing pressure around the inlet 36 to the larynx 38.
Intubation is then formed by passing a standard 8mm cuffed endotracheal tube 40 through the airway tube 10 and the aperture 19 into the larynx 38. The device is braced against the insertion of the endotracheal tube 40 by means of the handle 12. This enables insertion to be done blindly (i.e. without a laryngoscope). It thus makes the mask ideally suited to emergency conditions.
The breathing tube port 22 opens into the lumen 18 of the mask at the appropriate angle for guiding the endotracheal tube 40 into the larynx 48, thereby allowing blind intubation of the larynx 38. However, in a situation where the endotracheal tube does not pass into the larynx at the correct angle, the position of the mask 12 may be controlled by means of the handle 11 so that the correct angle of intubation is achieved.
The handle 9 also allows the mask 12 to be pulled forwards towards the larynx 38, thereby pulling the larynx 38 forwards to allow regurgitated stomach contents to be released while maintaining a tight seal around the inlet 36 of the larynx 38.
In an alternative embodiment of the present invention shown in Figure 4, a standard connector 50 is provided at the outer end of the airway tube 10 for attachment of conventional anaesthetic hosing and ventilation apparatus. Thus, embodiments of the present invention enable blind intubation through a modified laryngeal mask with a tube such that:-
a) The position of the laryngeal mask against the laryngeal orifice can be influenced by manipulation of a handle attached to the outer end of a rigid tube. b) The device can be positioned in the patient's pharynx using one hand only for insertion. This has advantages in the emergency situation where a patient may be trapped, for example in a crushed vehicle, making access difficult. c) The length of the airway tube can be comparatively short to facilitate the passing of a standard endotracheal tube, because of the addition of a handle for controlling the laryngeal mask airway. d) The airway tube is wide enough to accommodate an endotracheal tube of required diameter.
While the handle 9 and airway tube 10 are of stainless steel in the above embodiments, any rigid sterilisable material may alternatively be used.
Reference herein to actual and potential space behind the larynx will be understood to refer to the space normally available and that which can be become available on flexure of the surrounding structures.

Claims

CLAIMS :
1. An artificial airway device to facilitate lung ventilation in an unconscious patient, comprising a substantially rigid airway tube and a mask attached to an end of the airway tube, the mask having an annular peripheral formation of roughly elliptical shape capable of conforming to, or readily fitting within, the actual and potential space behind the larynx so as to form a seal around the circumference of the laryngeal inlet without the device penetrating into the interior of the larynx, the annular peripheral formation surrounding a hollow interior space or lumen of the mask into which the airway tube opens, in which said airway tube is curved to follow the airway of a patient, and said device further comprises a substantially rigid handle portion mounted to an end of the airway tube remote from the mask and extending in a direction away from the curve of said airway tube.
2. An artificial airway device as claimed in claim 1 wherein the handle portion curves in a direction opposite to the curvature of the airway tube.
3. An artificial airway device as claimed in claim 1 or 2, in which the annular peripheral formation carries a soft, flexible, upstanding collar surrounding the lumen of the mask so as to improve the sealing contact with the tissues around the circumference of the laryngeal inlet.
4. An artificial airway device as claimed in claim 1, 2 or 3, in which the mask comprises a stiffened back piece surrounded by said annular peripheral portion.
5. An artificial airway device as claimed in any preceding claim, in which the end of the airway tube remote from the mask comprises a connecting portion for connection of the airway tube to ventilation apparatus.
6. An artificial airway device as claimed in any preceding claim, including a bite portion adjacent the end of the airway tube remote from the mask for protecting the teeth of the patient.
7. An artificial airway device as claimed in any preceding claim, in which the airway tube and the handle portion are of stainless steel.
8. An artificial airway device as claimed in any preceding claim wherein the handle portion is removably mounted to the airway tube.
PCT/GB1992/000242 1991-02-11 1992-02-11 Artificial airway device WO1992013587A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE69230368T DE69230368T2 (en) 1991-02-11 1992-02-11 ARTIFICIAL AIR DEVICE
US07/869,491 US5303697A (en) 1991-02-11 1992-02-11 Artificial airway device
AU12383/92A AU653786B2 (en) 1991-02-11 1992-02-11 Artificial airway device
BR9205612A BR9205612A (en) 1991-02-11 1992-02-11 Artificial airway device to facilitate ventilation of the lungs in an unconscious patient
EP92904391A EP0571439B1 (en) 1991-02-11 1992-02-11 Artificial airway device
GR20000400424T GR3032725T3 (en) 1991-02-11 2000-02-23 Artificial airway device.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919102821A GB9102821D0 (en) 1991-02-11 1991-02-11 An intubating laryngeal mask airway
GB9102821.7 1991-02-11

Publications (1)

Publication Number Publication Date
WO1992013587A1 true WO1992013587A1 (en) 1992-08-20

Family

ID=10689822

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/000242 WO1992013587A1 (en) 1991-02-11 1992-02-11 Artificial airway device

Country Status (10)

Country Link
US (1) US5303697A (en)
EP (1) EP0571439B1 (en)
AU (1) AU653786B2 (en)
BR (1) BR9205612A (en)
CA (1) CA2101939C (en)
DE (1) DE69230368T2 (en)
ES (1) ES2142314T3 (en)
GB (2) GB9102821D0 (en)
GR (1) GR3032725T3 (en)
WO (1) WO1992013587A1 (en)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995033506A1 (en) * 1994-06-04 1995-12-14 Archibald Ian Jeremy Brain A fibreoptic intubating laryngeal mask airway
WO1997012641A1 (en) * 1995-10-03 1997-04-10 Archibald Ian Jeremy Brain Laryngeal mask airway incorporating an epiglottic elevating mechanism
US5682880A (en) * 1996-07-26 1997-11-04 Brain; Archibald Ian Jeremy Laryngeal-mask airway with guide element, stiffener, and fiberoptic access
WO1997045153A1 (en) * 1996-05-28 1997-12-04 Mcgill University Laryngeal cap
WO1998023317A1 (en) * 1996-11-28 1998-06-04 Ideamed N.V. Artificial respiration device
GB2324040A (en) * 1997-04-10 1998-10-14 Daniel J Cook Laryngeal mask
US6196224B1 (en) 1998-09-30 2001-03-06 David D. Alfery Perilaryngeal oral airway
US6386199B1 (en) 1999-09-29 2002-05-14 David D. Alfery Perilaryngeal oral airway
US6439232B1 (en) 1998-08-13 2002-08-27 Archibald Ian Jeremy Brain Laryngeal mask airway device
US6705318B1 (en) 1999-04-09 2004-03-16 Archibald I. J. Brain Disposable LMA
WO2004006746A3 (en) * 2002-07-16 2004-09-10 Uwe Klein Device for the lateral separation of air passages
US6792948B2 (en) 2003-01-22 2004-09-21 Archibald I. J. Brain Laryngeal mask airway device with airway tube having flattened outer circumference and elliptical inner airway passage
US6792943B2 (en) 2001-09-05 2004-09-21 Minnesota High-Tech Resources, Llc Intubating ventilatory face mask
US6918388B2 (en) 1997-07-25 2005-07-19 The Laryngeal Mask Company Limited Intubating laryngeal mask
US7004169B2 (en) 1999-10-07 2006-02-28 Indian Ocean Medical Inc. Laryngeal mask with large-bore gastric drainage
US7040312B2 (en) 2002-05-16 2006-05-09 Engineered Medical Systems, Inc. Perilaryngeal oral airway with flexible tip guide
US7134431B2 (en) 2003-09-08 2006-11-14 Indian Ocean Medical Inc. Laryngeal mask airway device with position controlling tab
US7156100B1 (en) 1998-10-06 2007-01-02 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US8801695B2 (en) 2005-09-28 2014-08-12 Covidien Lp Tracheostomy tube connector key system
WO2015049582A1 (en) 2013-10-04 2015-04-09 Teleflex Life Sciences Artificial airway device
US9265904B2 (en) 2009-07-06 2016-02-23 Teleflex Life Sciences Artificial airway
US9498591B2 (en) 2005-05-27 2016-11-22 The Laryngeal Mask Company Ltd. Laryngeal mask airway device with a support for preventing occlusion
US9528897B2 (en) 2009-08-13 2016-12-27 Chimden Medical Pty Ltd Pressure indicator
US9675772B2 (en) 2010-10-15 2017-06-13 The Laryngeal Mask Company Limited Artificial airway device
US9974912B2 (en) 2010-10-01 2018-05-22 Teleflex Life Sciences Unlimited Company Artificial airway device
US10549054B2 (en) 2011-02-02 2020-02-04 Teleflex Life Sciences Unlimited Company Artificial airway
US10576229B2 (en) 2009-03-03 2020-03-03 The Laryngeal Mask Company Limited Artificial airway device
US10806327B2 (en) 2011-11-30 2020-10-20 Teleflex Life Sciences Pte, Ltd. Laryngeal mask for use with an endoscope

Families Citing this family (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5643174A (en) * 1993-08-18 1997-07-01 Sumitomo Bakelite Company Limited Endoscopic guide tube with embedded coil spring
DE4447186A1 (en) * 1994-12-30 1996-07-11 Johann Dr Med Wittenbeck Larynx mask for fibre optic endotracheal intubation with simultaneous artificial respiration
US5477851A (en) * 1995-01-26 1995-12-26 Callaghan; Eric B. Laryngeal mask assembly and method for removing same
US5513627A (en) * 1995-01-27 1996-05-07 Flam; Gary H. Esophageal tracheal intubator airway
US5791341A (en) * 1995-12-19 1998-08-11 Bullard; James Roger Oropharyngeal stent with laryngeal aditus shield and nasal airway with laryngeal aditus shield
US6668821B2 (en) 1996-02-26 2003-12-30 Evergreen Medical Incorporated Laryngeal mask airway
US6634354B2 (en) * 1996-02-26 2003-10-21 Evergreen Medical Incorporated Laryngeal mask airway
US20050139220A1 (en) * 1996-02-26 2005-06-30 Evergreen Medical Incorporated Method and apparatus for ventilation / oxygenation during guided insertion of an endotracheal tube
US5878745A (en) * 1996-03-01 1999-03-09 Brain; Archibald I.J. Gastro-laryngeal mask
GB9606012D0 (en) * 1996-03-22 1996-05-22 Brain Archibald Ian Jeremy Laryngeal mask with gastric-drainage feature
US5623921A (en) * 1996-04-10 1997-04-29 Kinsinger; J. William Laryngeal mask airway and method for its use
GB9619432D0 (en) * 1996-09-18 1996-10-30 Smiths Industries Plc Laryngeal mask assemblies
GB9620609D0 (en) 1996-10-03 1996-11-20 Smiths Industries Plc Laryngeal mask airways and their manufacture
US6427686B2 (en) 1996-10-16 2002-08-06 Augustine Medical, Inc. Airway device with provision for coupling to an introducer
US5937859A (en) * 1996-10-16 1999-08-17 Augustine Medical, Inc. Laryngeal airway device
US6830049B2 (en) * 1996-10-16 2004-12-14 Arizant Healthcare Inc. Airway device with provision for coupling to an introducer
GB9622880D0 (en) 1996-11-02 1997-01-08 Smiths Industries Plc Laryngeal mask airways and thier manufacture
GB2318735B (en) * 1996-11-02 2000-04-19 Smiths Industries Plc Laryngeal mask airways and their manufacture
CA2220285C (en) * 1996-11-06 2006-10-03 Archibald I.J. Brain Endotracheal tube construction
GB9624029D0 (en) 1996-11-19 1997-01-08 Smiths Industries Ltd Laryngeal mask airways and their manufacture
GB9705585D0 (en) 1997-03-18 1997-05-07 Smiths Industries Plc Laryngeal mask assemlies
GB9705537D0 (en) 1997-03-18 1997-05-07 Smiths Industries Plc Laryngeal mask assemblies
GB9705586D0 (en) * 1997-03-18 1997-05-07 Smiths Industries Plc Laryngeal mask assemblies
US8631796B2 (en) * 1997-04-10 2014-01-21 Cookgas, L.L.C. Laryngeal mask
US6705321B2 (en) * 1997-04-10 2004-03-16 Daniel J. Cook Laryngeal mask adapter
US7357845B2 (en) * 1997-04-10 2008-04-15 Cookgas, L.L.C. Methods of making laryngeal masks
US20050039756A1 (en) * 1997-04-10 2005-02-24 Cook Daniel J. Methods of making laryngeal masks
GB9709297D0 (en) * 1997-05-03 1997-06-25 Smiths Industries Plc Laryngeal mask assemblies
US5853004A (en) * 1997-06-02 1998-12-29 Goodman; Evan J. Pharyngeal bulb airway
GB9721840D0 (en) * 1997-10-16 1997-12-17 Smiths Industries Plc Laryngeal mask assemblies
US6003510A (en) * 1997-12-04 1999-12-21 Anunta; Boonchuay Hand tool for introducing a laryngeal mask
US7331346B2 (en) * 1997-12-24 2008-02-19 Indian Ocean Medical, Inc. Monitoring and control for a laryngeal mask airway device
GB9727367D0 (en) 1997-12-24 1998-02-25 Brain Archibald Ian Jeremy Improvements in laryngeal mask airway devices
GB9803199D0 (en) 1998-02-17 1998-04-08 Smiths Industries Plc Laryngeal mask airways and their manufacture
US6318367B1 (en) 1998-03-19 2001-11-20 Vital Signs, Inc. Laryngeal mask assembly
GB9818558D0 (en) * 1998-08-27 1998-10-21 Craft Timothy M Dr An airway bite protector
AU2008230027B2 (en) * 1998-10-06 2011-10-20 The Laryngeal Mask Company Limited Laryngeal mask airway device
US6119695A (en) 1998-11-25 2000-09-19 Augustine Medical, Inc. Airway device with provision for lateral alignment, depth positioning, and retention in an airway
CN1765429B (en) * 1999-04-09 2010-12-08 喉症治疗防护罩有限公司 Disposable laryngeal mask airway device
US6394093B1 (en) * 1999-05-13 2002-05-28 Scott Lethi Nasopharyngeal airway with inflatable cuff
GB9920098D0 (en) 1999-08-26 1999-10-27 Smiths Industries Plc Medico-surgical apparatus
EP1229946A2 (en) * 1999-11-05 2002-08-14 Jonathan Gareth Weston Evans Bite-resistant endotracheal tube
US6511676B1 (en) * 1999-11-05 2003-01-28 Teni Boulikas Therapy for human cancers using cisplatin and other drugs or genes encapsulated into liposomes
GB0002805D0 (en) 2000-02-08 2000-03-29 Smiths Industries Plc Masks and their manufacture
AU2002220099A1 (en) * 2000-11-20 2002-05-27 Evergreen Medical, Inc. Laryngeal mask airway
GB0031661D0 (en) 2000-12-22 2001-02-07 Smiths Group Plc Laryngeal mask assemblies
US7159589B2 (en) 2001-08-23 2007-01-09 Indian Ocean Medical Inc. Disposable laryngeal mask airway device
US6877512B2 (en) 2001-09-05 2005-04-12 The Regents Of The University Of California Airway device
US7040322B2 (en) * 2001-11-08 2006-05-09 Fortuna Anibal De Oliveira Combination artificial airway device and esophageal obturator
US7762261B1 (en) 2001-11-08 2010-07-27 Fortuna Anibal De Oliveira Combination artificial airway device and esophageal obturator
GB0218631D0 (en) 2002-08-10 2002-09-18 Smiths Group Plc Laryngeal masks
GB0218868D0 (en) 2002-08-14 2002-09-25 Nasir Muhammed A Improved airway management device
EP1654025B1 (en) 2003-08-14 2012-03-14 Muhammed Aslam Nasir Improved airway device
AU2012216794B2 (en) * 2003-09-08 2014-09-11 Teleflex Life Sciences Llc Laryngeal mask airway device with position controlling tab
US7128071B2 (en) 2003-09-10 2006-10-31 Indian Ocean Medical Inc. Intubating laryngeal mask airway device with fiber optic assembly
US7096868B2 (en) * 2004-03-09 2006-08-29 Nellcor Puritan Bennett Incorporated Laryngeal airway device
GB0408548D0 (en) * 2004-04-16 2004-05-19 Brain Archibald Ian Jeremy Laryngeal mask airway device
US7013899B2 (en) * 2004-08-13 2006-03-21 Engineered Medical System, Inc. Perilaryngeal oral airway with multi-lumen esophogeal-obturator
US20070068517A1 (en) * 2005-09-29 2007-03-29 Crohn Steven S Composition for use with artificial airway devices
US7938118B2 (en) * 2006-04-06 2011-05-10 Kessler Joel D Combination laryngeal mask airway with dual blocking and fluid removal features and method
DE102006023273B3 (en) * 2006-05-18 2007-04-26 Universitätsklinikum Schleswig-Holstein Arrangement to verifiably position a catheter serving as an endotracheal tube in the air tubes of a patient comprises a unit to determine the carbon dioxide content in a gas sample
DE102006029182B3 (en) * 2006-06-24 2007-07-12 Universitätsklinikum Schleswig-Holstein Larnyx mask with endotracheal tube comprising mask, shaft with tube-shaped section and guide rail and intubation tube fastened by pushing it through mask and pumping up tube cuff in tube-shaped section
US7900632B2 (en) 2006-08-18 2011-03-08 Cookgas, L.L.C. Laryngeal mask with esophageal blocker and bite block
US7784464B2 (en) * 2006-09-15 2010-08-31 Cookgas, Llc Laryngeal mask
US7780900B2 (en) * 2006-09-15 2010-08-24 Cookgas, Llc Methods of forming a laryngeal mask
GB0620862D0 (en) * 2006-10-20 2006-11-29 Smiths Group Plc Laryngeal mask assemblies
GB2444779A (en) 2006-12-14 2008-06-18 Archibald Ian Jeremy Brain A laryngeal mask with with drug delivery means
US7934502B2 (en) 2007-05-11 2011-05-03 Cookgas, Llc Self-pressurizing supraglottic airway
GB0719054D0 (en) * 2007-09-29 2007-11-07 Nasir Muhammed A Airway device
US20090090356A1 (en) * 2007-10-03 2009-04-09 Cook Daniel J Supralaryngeal Airway Including Instrument Ramp
GB2454199A (en) * 2007-10-30 2009-05-06 Laryngeal Mask Co Ltd Laryngeal mask with tape tab
CN101450235B (en) * 2007-11-28 2013-03-13 刘春江 Respiration auxiliary system
CN101450238B (en) * 2007-11-28 2012-09-12 刘春江 Tracheal cannula auxiliary system
GB0810169D0 (en) * 2008-06-04 2008-07-09 Cosmeplast Ets Improvements relating to respiratory interface devices
USD665495S1 (en) 2009-07-14 2012-08-14 Muhammed Aslam Nasir Medical device
WO2011106754A1 (en) 2010-02-27 2011-09-01 King Systems Corporation Laryngeal tube
GB201010647D0 (en) 2010-06-24 2010-08-11 Docsinnovent Ltd Stopper device
GB201013160D0 (en) 2010-08-05 2010-09-22 Laryngeal Mask Company The Ltd A laryngeal mask airway device
DK201001052A (en) 2010-11-19 2011-11-10 Ambu As A tracheal intubation guide
USD693920S1 (en) 2011-06-08 2013-11-19 Intersurgical Ag Airway device
USD665254S1 (en) 2011-06-08 2012-08-14 Intersurgical Ag Airway device packaging
USD688787S1 (en) 2011-06-08 2013-08-27 Intersurgical Ag Airway device cap and strap holder
USD712244S1 (en) 2011-09-23 2014-09-02 Intersurgical Ag Medical device package
US9078986B2 (en) * 2011-11-11 2015-07-14 Ala Device, Llc Adjustable laryngeal airway (ALA) device and method of use
GB201201438D0 (en) 2012-01-27 2012-03-14 Docsinnovent Ltd Improved stopper device
USD761952S1 (en) 2012-07-27 2016-07-19 Docsinnovent Limited Airway device
CN102974014B (en) * 2012-11-27 2016-03-09 肖金仿 The built-in endotracheal tube laryngeal mask associating breather of general anesthesia
CN104001250B (en) * 2013-02-25 2018-01-16 肖金仿 The completely built-in laryngeal mask joint air-breather of tracheal catheter
RU2626902C2 (en) 2013-03-06 2017-08-02 Медком Флоу, С.А. Laryngeal videomask with rigid retracting tab and tool for ventilation and intubation
CN103463719B (en) * 2013-09-30 2016-11-09 肖金仿 A kind of endotracheal tube complete built-in laryngeal mask associating breather
GB2555360B (en) 2013-12-17 2018-10-10 Intersurgical Ag Intubating Airway Device
SG2014011720A (en) 2014-02-10 2015-09-29 Craig Wight Ronald An airway management device and method of manufacture
CN106535973B (en) * 2014-03-12 2020-04-28 米纳什·巴斯卡博士 Improved laryngeal mask
US9463296B2 (en) 2014-04-01 2016-10-11 Michael S. Stix Laryngeal mask with piriform-fossa conduit
USD842456S1 (en) 2015-12-15 2019-03-05 Intersurgical Ag Airway device
AU201714823S (en) 2017-02-27 2017-10-12 Teleflex Life Sciences Unlimited Co Laryngeal mask airway device
US10314995B2 (en) 2017-08-17 2019-06-11 Yang Sun Endotracheal intubation and supraglottic airway device
GB201720733D0 (en) 2017-12-13 2018-01-24 Ashkal Development Ltd Airway device
US10596339B2 (en) * 2018-05-21 2020-03-24 Sridhar R. Musuku Intubation devices and methods of use
USD858752S1 (en) 2018-05-21 2019-09-03 Sridhar R. Musuku Intubation device
USD921185S1 (en) * 2019-01-24 2021-06-01 Sridhar R. Musuku Intubation device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2517974A1 (en) * 1981-12-16 1983-06-17 Brain Archibald ARTIFICIAL RESPIRATORY TRACT
US4449526A (en) * 1981-11-27 1984-05-22 Elam James O Mask breathing system
EP0110333A2 (en) * 1979-11-28 1984-06-13 Michael S. Upsher Improved laryngoscope
GB2137096A (en) * 1983-03-21 1984-10-03 Medasil Oropharyngeal airway
US4553540A (en) 1983-08-16 1985-11-19 Straith Richard E Airway
EP0389272A2 (en) * 1989-03-22 1990-09-26 Archibald Ian Jeremy Dr. Brain Artifical airway device

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB445218A (en) * 1935-01-07 1936-04-06 John Urban Human An improved device for use in anaesthesia
US3225767A (en) * 1964-03-13 1965-12-28 South Chester Corp Tracheal tube device
US4054135A (en) * 1976-07-23 1977-10-18 Berman Robert A Intubating pharyngeal airway
US4351330A (en) * 1978-01-30 1982-09-28 Scarberry Eugene N Emergency internal defibrillation
US4211234A (en) * 1978-08-24 1980-07-08 Joseph Fisher Endotracheal tube introducer
US4306547A (en) * 1979-11-20 1981-12-22 Lowell James R Rigid fiberoptic laryngoscope
US4304228A (en) * 1980-07-14 1981-12-08 Bivona Surgical Instruments, Inc. Outside locking tracheal tube
US4919126A (en) * 1987-05-08 1990-04-24 Baildon David E Flexible oral airways and methods
GB2205499B (en) * 1987-06-05 1991-01-16 Archibald Ian Jeremy Brain Artificial airway device
US4852565A (en) * 1988-03-22 1989-08-01 Shiley Inc. Fenestrated tracheostomy tube
US4947829A (en) * 1988-05-10 1990-08-14 Bullard James R Modular blade laryngoscope
US4982729A (en) * 1989-02-10 1991-01-08 Wu Tzu Lang Rigid fiberoptic intubating laryngoscope
US5033466A (en) * 1989-02-28 1991-07-23 Weymuller Jr Ernest Doble-cuffed endotracheal tube
US5038766A (en) * 1989-11-08 1991-08-13 Parker Jeffrey D Blind orolaryngeal and oroesophageal guiding and aiming device
US5174283A (en) * 1989-11-08 1992-12-29 Parker Jeffrey D Blind orolaryngeal and oroesophageal guiding and aiming device
GB9004315D0 (en) * 1990-02-27 1990-04-25 Brain Archibald Ian Jeremy Artificial airway device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0110333A2 (en) * 1979-11-28 1984-06-13 Michael S. Upsher Improved laryngoscope
US4449526A (en) * 1981-11-27 1984-05-22 Elam James O Mask breathing system
FR2517974A1 (en) * 1981-12-16 1983-06-17 Brain Archibald ARTIFICIAL RESPIRATORY TRACT
GB2111394A (en) 1981-12-16 1983-07-06 Archibald Ian Jeremy Brain Artificial airway device
GB2137096A (en) * 1983-03-21 1984-10-03 Medasil Oropharyngeal airway
US4553540A (en) 1983-08-16 1985-11-19 Straith Richard E Airway
EP0389272A2 (en) * 1989-03-22 1990-09-26 Archibald Ian Jeremy Dr. Brain Artifical airway device

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1127988C (en) * 1994-06-04 2003-11-19 阿奇巴尔德·伊恩·杰里米·布雷恩 Fibreoptic intubating laryngeal mask airway
AU691299B2 (en) * 1994-06-04 1998-05-14 Laryngeal Mask Company Limited, The A fibreoptic intubating laryngeal mask airway
WO1995033506A1 (en) * 1994-06-04 1995-12-14 Archibald Ian Jeremy Brain A fibreoptic intubating laryngeal mask airway
WO1997012641A1 (en) * 1995-10-03 1997-04-10 Archibald Ian Jeremy Brain Laryngeal mask airway incorporating an epiglottic elevating mechanism
AU785498B2 (en) * 1995-10-03 2008-07-24 Laryngeal Mask Company Ltd, The Laryngeal mask airway incorporating an epiglottic elevating mechanism
WO1997045153A1 (en) * 1996-05-28 1997-12-04 Mcgill University Laryngeal cap
US5682880A (en) * 1996-07-26 1997-11-04 Brain; Archibald Ian Jeremy Laryngeal-mask airway with guide element, stiffener, and fiberoptic access
US6378521B1 (en) 1996-11-28 2002-04-30 Ideamed N.V. Artificial airway device
NL1004640C2 (en) * 1996-11-28 1998-06-05 Ideamed N V Ventilation equipment.
WO1998023317A1 (en) * 1996-11-28 1998-06-04 Ideamed N.V. Artificial respiration device
GB2324040B (en) * 1997-04-10 2001-06-06 Daniel J Cook Laryngeal mask
GB2324040A (en) * 1997-04-10 1998-10-14 Daniel J Cook Laryngeal mask
US6918388B2 (en) 1997-07-25 2005-07-19 The Laryngeal Mask Company Limited Intubating laryngeal mask
US6439232B1 (en) 1998-08-13 2002-08-27 Archibald Ian Jeremy Brain Laryngeal mask airway device
US9694150B2 (en) 1998-08-13 2017-07-04 The Laryngeal Mask Company Limited Laryngeal mask airway device
US6196224B1 (en) 1998-09-30 2001-03-06 David D. Alfery Perilaryngeal oral airway
US7156100B1 (en) 1998-10-06 2007-01-02 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US6705318B1 (en) 1999-04-09 2004-03-16 Archibald I. J. Brain Disposable LMA
US6729325B2 (en) 1999-09-29 2004-05-04 David D. Alfery Perilaryngeal oral airway
US6983744B2 (en) 1999-09-29 2006-01-10 Alfery David D Perilaryngeal oral airway with temperature sensor
US6386199B1 (en) 1999-09-29 2002-05-14 David D. Alfery Perilaryngeal oral airway
US7004169B2 (en) 1999-10-07 2006-02-28 Indian Ocean Medical Inc. Laryngeal mask with large-bore gastric drainage
US6792943B2 (en) 2001-09-05 2004-09-21 Minnesota High-Tech Resources, Llc Intubating ventilatory face mask
US7040312B2 (en) 2002-05-16 2006-05-09 Engineered Medical Systems, Inc. Perilaryngeal oral airway with flexible tip guide
WO2004006746A3 (en) * 2002-07-16 2004-09-10 Uwe Klein Device for the lateral separation of air passages
US9027559B2 (en) 2003-01-22 2015-05-12 The Laryngeal Mask Company Ltd. Laryngeal mask airway device with airway tube having flattened outer circumference and elliptical inner airway passage
US6792948B2 (en) 2003-01-22 2004-09-21 Archibald I. J. Brain Laryngeal mask airway device with airway tube having flattened outer circumference and elliptical inner airway passage
EP2165727A3 (en) * 2003-09-08 2014-05-21 The Laryngeal Mask Company Limited Laryngeal Mask Airway Device with Position Controlling Tab
US7134431B2 (en) 2003-09-08 2006-11-14 Indian Ocean Medical Inc. Laryngeal mask airway device with position controlling tab
US9662465B2 (en) 2005-05-27 2017-05-30 The Laryngeal Mask Company Ltd. Laryngeal mask airway device
US9498591B2 (en) 2005-05-27 2016-11-22 The Laryngeal Mask Company Ltd. Laryngeal mask airway device with a support for preventing occlusion
US9522245B2 (en) 2005-05-27 2016-12-20 The Laryngeal Mask Company Ltd. Laryngeal mask airway device and method of manufacture
US8801695B2 (en) 2005-09-28 2014-08-12 Covidien Lp Tracheostomy tube connector key system
US10576229B2 (en) 2009-03-03 2020-03-03 The Laryngeal Mask Company Limited Artificial airway device
US9265904B2 (en) 2009-07-06 2016-02-23 Teleflex Life Sciences Artificial airway
US10576230B2 (en) 2009-07-06 2020-03-03 Teleflex Life Sciences Unlimited Company Artificial airway
US9528897B2 (en) 2009-08-13 2016-12-27 Chimden Medical Pty Ltd Pressure indicator
US10126197B2 (en) 2009-08-13 2018-11-13 Teleflex Life Sciences Pressure indicator
US9974912B2 (en) 2010-10-01 2018-05-22 Teleflex Life Sciences Unlimited Company Artificial airway device
US9675772B2 (en) 2010-10-15 2017-06-13 The Laryngeal Mask Company Limited Artificial airway device
US10842962B2 (en) 2010-10-15 2020-11-24 Teleflex Life Sciences Pte. Ltd. Artificial airway device
US10549054B2 (en) 2011-02-02 2020-02-04 Teleflex Life Sciences Unlimited Company Artificial airway
US10806327B2 (en) 2011-11-30 2020-10-20 Teleflex Life Sciences Pte, Ltd. Laryngeal mask for use with an endoscope
EP3461524A1 (en) 2013-10-04 2019-04-03 Teleflex Life Sciences Unlimited Company Artificial airway device
WO2015049582A1 (en) 2013-10-04 2015-04-09 Teleflex Life Sciences Artificial airway device

Also Published As

Publication number Publication date
GB2252502B (en) 1994-08-03
ES2142314T3 (en) 2000-04-16
GR3032725T3 (en) 2000-06-30
DE69230368D1 (en) 2000-01-05
BR9205612A (en) 1994-07-26
GB9203073D0 (en) 1992-03-25
GB2252502A (en) 1992-08-12
AU653786B2 (en) 1994-10-13
AU1238392A (en) 1992-09-07
CA2101939C (en) 1996-11-19
EP0571439B1 (en) 1999-12-01
GB9102821D0 (en) 1991-03-27
DE69230368T2 (en) 2000-05-31
CA2101939A1 (en) 1992-08-12
US5303697A (en) 1994-04-19
EP0571439A1 (en) 1993-12-01

Similar Documents

Publication Publication Date Title
US5303697A (en) Artificial airway device
US7921847B2 (en) Device and method for placing within a patient an enteral tube after endotracheal intubation
US5513627A (en) Esophageal tracheal intubator airway
JP2931988B2 (en) Artificial respirator
EP0294200B1 (en) Artificial airway device
US5499625A (en) Esophageal-tracheal double lumen airway
US4509514A (en) Artificial airway device
US5623921A (en) Laryngeal mask airway and method for its use
EP0448878A2 (en) Artificial airway device
US5964217A (en) Method and apparatus for ventilation/oxygenation during guided insertion of an endotracheal tube
US5791341A (en) Oropharyngeal stent with laryngeal aditus shield and nasal airway with laryngeal aditus shield
AU723873B2 (en) Laryngeal mask assemblies
JP3565866B2 (en) Artificial respiration
CA2367474A1 (en) Artificial airway device and method of its use
JP2006527027A (en) Intubation device
IE922073A1 (en) Artificial airway device
EP1242137B1 (en) Artificial airway device and method of its use

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR CA CH CS DE DK ES FI GB HU JP KP KR LK LU MG MN MW NL NO PL RO RU SD SE US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE BF BJ CF CG CH CI CM DE DK ES FR GA GB GN GR IT LU MC ML MR NL SE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2101939

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 1992904391

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1992904391

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWG Wipo information: grant in national office

Ref document number: 1992904391

Country of ref document: EP

ENP Entry into the national phase

Ref country code: CA

Ref document number: 2101939

Kind code of ref document: A

Format of ref document f/p: F